Hi, thanks for the reply @rk_root!
I’m just wondering if anyone in the forums has any experience in running it on Percona instead of MariaDB. The only thread I can find mentioning Percona is this: Can i use MySQL instead of MariaDB - #2 by anand
In this thread, @anand said:
In fact, MariaDB should play well with your other software, as it is compatible with MySQL and provides a much more stable InnoDB implementation called XtraDB (by Percona).
I figured that since Percona invented XtraDB and therefore fully supports XtraDB tables, it should work fine. But I just wanted to check first. We’re really happy with Percona and have lots of systems built around it, so we don’t want to switch. And we’d prefer to not have to run a second MySQL server just for ERPNext if we can avoid it 
Cheers